Examples of org.geotools.feature.FeatureCollection.features()

Class org.geotools.feature.FeatureCollection

Examples of org.geotools.feature.FeatureCollection.features()

org.geotools.feature.FeatureCollection.features()
Obtain a FeatureIterator
of the Features within this FeatureCollection.
The implementation of FeatureIterator must adhere to the rules of fail-fast concurrent modification. In addition (to allow for resource backed collections) the FeatureIterator.close() method must be called.
Example use:
```
 FeatureIterator iterator=collection.features(); try { while( iterator.hasNext()  ){ Feature feature = iterator.next(); System.out.println( feature.getID() ); } } finally { iterator.close(); } 
```
GML Note: The contents of this iterator are considered to be defined by featureMember tags (and/or the single allowed FeatureMembers tag). Please see getFeatureType for more details.
@return A FeatureIterator.

        FeatureTypeInfo fti = getCatalog().getFeatureTypeByName("MyPoints");
        assertEquals("EPSG:4326", fti.getSRS());
        assertEquals(ProjectionPolicy.REPROJECT_TO_DECLARED, fti.getProjectionPolicy());
        FeatureCollection fc = fti.getFeatureSource(null, null).getFeatures();
        assertEquals(CRS.decode("EPSG:4326"), fc.getSchema().getCoordinateReferenceSystem());
        FeatureIterator fi = fc.features();
        Feature f = fi.next();
        
        //test that geometry was reprojected
        Geometry g = (Geometry) f.getDefaultGeometryProperty().getValue();
        assertFalse(g.equalsExact(WKT.read("POINT(500050 500050)")));

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        VersioningDataStore synch = (VersioningDataStore) getCatalog().getDataStoreByName("synch")
                .getDataStore(null);
        FeatureSource<SimpleFeatureType, SimpleFeature> fs = synch.getFeatureSource(SYNCH_HISTORY);
        FeatureCollection fc = fs.getFeatures(ff.equals(ff.property("table_name"), ff
                .literal("restricted")));
        FeatureIterator fi = fc.features();
        SimpleFeature f = (SimpleFeature) fi.next();
        fi.close();


        assertEquals(12l, f.getAttribute("central_revision"));
    }

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  public void testParseWfs() throws IOException, SAXException, ParserConfigurationException {
    GeoserverClientSynchronizer clientSynchronizer = new GeoserverClientSynchronizer(makeConfiguration(), "", SimulatedRequestBuilder.POST_TEMPLATE);
    InputStream is = loadResource("buildings.xml");
    FeatureCollection features = (FeatureCollection) clientSynchronizer.parseWfs(is);
    assertEquals(2, features.size());
    FeatureIterator<?> it = features.features();
    try {
      int i = 0;
      while (it.hasNext()) {
        Feature feature = it.next();
        switch (i) {

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            List<AttributeDescriptor> types;
            
            for (int i = 0; i < size; i++) // for each layer queried
            {
                fr = (FeatureCollection) collections.get(i);                
                reader = fr.features();
              
                boolean startFeat = true;
                while (reader.hasNext()) {
                    Feature feature = reader.next();

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        List list = new ArrayList();
        
        Iterator it = collections.iterator();
        while(it.hasNext()){
            FeatureCollection col = (FeatureCollection)it.next();
            FeatureIterator it2 = col.features();
            while (it2.hasNext()){
                list.add(it.next());
            }
            it2.close();
        }

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        FeatureCollectionType fct = (FeatureCollectionType) p.parse(new ByteArrayInputStream(
                response.getOutputStreamContent().getBytes()));
        FeatureCollection fc = (FeatureCollection) fct.getFeature().get(0);


        assertEquals(1, fc.size());
        SimpleFeature sf = (SimpleFeature) fc.features().next();
        Geometry simplified = ((Geometry) sf.getDefaultGeometry());
        assertTrue(new Envelope(-92, -87, 37, 43).contains(simplified.getEnvelopeInternal()));
        // should have been simplified to a 4 side polygon
        assertEquals(5, simplified.getCoordinates().length);
    }

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        FeatureCollection fc = (FeatureCollection) fct.getFeature().get(0);


        assertEquals(36, fc.size());
        
        // get first feature
        SimpleFeature sf = (SimpleFeature) fc.features().next();
        Geometry simplified = ((Geometry) sf.getDefaultGeometry());
        assertTrue(simplified instanceof Point);
        assertEquals(sf.getID(),"0");  
        assertEquals(sf.getAttributeCount(), 5);
        assertEquals("75",sf.getProperty("GRAY_INDEX").getValue());

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        FeatureCollectionType fct = (FeatureCollectionType) p.parse(new ByteArrayInputStream(
                response.getOutputStreamContent().getBytes()));
        FeatureCollection fc = (FeatureCollection) fct.getFeature().get(0);


        assertEquals(1, fc.size());
        SimpleFeature sf = (SimpleFeature) fc.features().next();
        Geometry simplified = ((Geometry) sf.getDefaultGeometry());
        // should have been clipped to this specific area
        assertTrue(new Envelope(-100, -90, 40, 45).contains(simplified.getEnvelopeInternal()));
    }
}

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